Preheat oven to 400°F (200°C) and grease a baking sheet or line with parchment paper.
Steam the riced cauliflower for 5 minutes, then transfer to a clean dish towel and squeeze out as much liquid as possible to ensure a crisp texture.
In a large mixing bowl, combine the drained cauliflower, egg, cheese, breadcrumbs, onion, parsley, salt, and pepper.
Form approximately 1 tablespoon of the mixture into a small cylinder and place on the baking sheet.
Repeat with the remaining mixture, spacing tots 1 inch apart.
Bake for 20 minutes, flipping halfway through, until the exterior is golden brown and firm.